如何根据ID之外的某些属性从集合中查找模型？ [英] How to find a model from a collection according to some attribute other than the ID?

问题描述

我有一个包含多个对象的模型：

I have a model with several object:

//Model
Friend = Backbone.Model.extend({
    //Create a model to hold friend attribute
    name: null,
}); 

//objects
var f1 = new Friend({ name: "Lee" });
var f2 = new Friend({ name: "David"});
var f3 = new Friend({ name: "Lynn"});

此外，我会将这些朋友对象添加到集合中：

and also, I will add these friends object to a collection:

//Collection
Friends = Backbone.Collection.extend({
    model: Friend,
});

Friends.add(f1);
Friends.add(f2);
Friends.add(f3);

现在我想根据朋友的名字得到一个模型。我知道我可以添加一个 ID 属性来实现这一目的。但我认为应该有一些更简单的方法来做到这一点。

and now I want to get a model according to the name of the Friend. I know that I can add an ID attribute to achieve this. But I think there should have some more simple way to do this.

推荐答案

Backbone集合支持underscorejs 找到方法，所以使用它应该有效。

Backbone collections support the underscorejs find method, so using that should work.

things.find(function(model) { return model.get('name') === 'Lee'; });

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